Mojo module

string

The core String type implementation for Mojo.

This module provides the primary String type and its fundamental operations. The String type is designed to handle UTF-8 encoded text efficiently while providing a safe and ergonomic interface for string manipulation.

Key Features:

Short string optimization (SSO) and lazy copying of constant string data.
O(1) copy operation.
UTF-8 encoded string storage
Memory-safe string operations
Efficient string concatenation and slicing
String-to-number conversions (atof, atol)
ASCII string utilities
Character code conversions (chr, ord)

The String type is the main interface for text manipulation in Mojo, providing:

Mutable string data
Efficient string operations optimized for common cases
Unicode support through UTF-8 encoding. A handful of operations are known to not be Unicode / UTF-8 compliant yet, but will be fixed as time permits.
Safe memory management and bounds checking

Example: ```mojo from collections.string import String

# String creation and basic operations
var s1 = String("Hello")
var s2 = String("World")
var combined = s1 + " " + s2  # "Hello World"

# String-to-number conversion
var num = atof("3.14")
var int_val = atol("42")

# Character operations
var char = chr(65)  # "A"
var code = ord("A")  # 65

# ASCII utilities
var ascii_str = ascii("Hello")  # ASCII-only string
```
# String creation and basic operations
var s1 = String("Hello")
var s2 = String("World")
var combined = s1 + " " + s2  # "Hello World"

# String-to-number conversion
var num = atof("3.14")
var int_val = atol("42")

# Character operations
var char = chr(65)  # "A"
var code = ord("A")  # 65

# ASCII utilities
var ascii_str = ascii("Hello")  # ASCII-only string
```

Structs

String: Represents a mutable string.

Functions

ascii: Get the ASCII representation of the object.
atof: Parses the given string as a floating point and returns that value.
atol: Parses and returns the given string as an integer in the given base.
chr: Returns a String based on the given Unicode code point. This is the inverse of the ord() function.
ord: Returns an integer that represents the codepoint of a single-character string.

Structs​

Functions​

Structs

Functions